 /*******************************************************************************
  * Copyright (c) 2003, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.osgi.service.resolver;

 import java.util.Map ;

 /**
  * This class represents a specific version of an exported package in the system.
  * <p>
  * Clients may implement this interface.
  * </p>
  * @since 3.1
  */
 public interface ExportPackageDescription extends BaseDescription {

     /**
      * Returns true if the export package is a root package; false otherwise.
      * A ExportPackageDescription is not a root package the exporting bundle
      * is re-exporting the package using the Reexport-Package header.
      * @return true if the export package is a root package; false otherwise
      */
     public boolean isRoot();

     /**
      * Returns the arbitrary attributes for this package.
      * @return the arbitrary attributes for this package
      */
     public Map getAttributes();

     /**
      * Returns the directives for this package.
      * @return the directives for this package
      */
     public Map getDirectives();

     /**
      * Returns the specified directive for this package.
      * @param key the directive to fetch
      * @return the specified directive for this package
      */
     public Object getDirective(String key);

     /**
      * Returns the exporter of this package.
      * @return the exporter of this package.
      */
     public BundleDescription getExporter();
 }

